The auth_send function in providers/ldap/ldap_auth.c in System Security Services Daemon…
Priority LOW 27CWE-287Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- High
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- Partial · Partial · Partial
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-287.
Summary
The auth_send function in providers/ldap/ldap_auth.c in System Security Services Daemon (SSSD) 1.3.0, when LDAP authentication and anonymous bind are enabled, allows remote attackers to bypass the authentication requirements of pam_authenticate via an empty password.
Why it matters now
EPSS 0.02023 81st percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:fedoraproject:sssd:1.3.0:*:*:*:*:*:*:* | 1.3.0 | Vulnerable | Fedoraproject |
- cpe:2.3:a:fedoraproject:sssd:1.3.0:*:*:*:*:*:*:* Versions 1.3.0 Vulnerable ·Fedoraproject
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Red Hat
Red Hat rating: Important. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 5 | Affected | No fix yet |
Not affected: 1 product
- Red Hat Enterprise Linux 6
Timeline
- 2026-10-02 Threatist record created from CVE-2010-2940
- 2026-10-03 Alias added: GHSA-x9m9-3w3m-hrf4
References
More Fedoraproject Sssd vulnerabilities
- TI-2022-03895 sssd: libsss_certmap fails to sanitise certificate data used in LDAP filters CVSS 3.1HIGH 8.8
- TI-2026-68594 Authorization bypass in SSSD HBAC rules via username collision CVSS 3.1HIGH 8.1
- TI-2026-68550 Denial of service in sssd responder via connection retry loop CVSS 3.1MEDIUM 5.5
- TI-2026-68273 Denial of service in SSSD via unprivileged autofs cache invalidation CVSS 3.1MEDIUM 5.5
- TI-2026-61496 Sssd: sssd: fail-open in ldap ppolicy access check allows continued authorization CVSS 3.1MEDIUM 5.4
- TI-2026-69019 Race condition in SSSD autofs responder enables denial of service CVSS 3.1MEDIUM 4.7
Sources
- CVE-2010-2940 · CVE Program
- CVE-2010-2940 · NVD
- FIRST EPSS
- GHSA-x9m9-3w3m-hrf4 · GitHub Advisory Database · CC BY 4.0
- CVE-2010-2940 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences